Port to C99

Related to:

  <https://fedoraproject.org/wiki/Changes/PortingToModernC>
  <https://fedoraproject.org/wiki/Toolchain/PortingToModernC>

gavl-c99.patch

@@ -0,0 +1,21 @@
+Include <string.h> for memset, to avoid an implicit function
+declaration and build failures with future compilers.
+
+Fixed upstream as part of:
+
+r5451 | gmerlin | 2018-11-27 20:38:42 +0100 (Tue, 27 Nov 2018) | 2 lines
+
+* Update
+
+diff --git a/src/fill_test.c b/src/fill_test.c
+index 1d362bea4af85745..6fd97dab9e192baa 100644
+--- a/src/fill_test.c
++++ b/src/fill_test.c
+@@ -23,6 +23,7 @@
+ //#include "colorspace.h" // Common routines
+ #include <stdio.h>
+ #include <png.h>
++#include <string.h>
+ 
+ static void
+ write_png(char * filename, gavl_video_format_t * format, gavl_video_frame_t * frame)

gavl-configure-c99.patch

@@ -0,0 +1,22 @@
+Avoid an implicit int in the clock_gettime test, to keep the same test
+outcome with future compilers that do not support implicit ints.
+
+Fixed upstream as part of:
+
+r6246 | gmerlin | 2021-09-01 11:46:30 +0200 (Wed, 01 Sep 2021) | 2 lines
+
+Applied cross-building.patch by Helmut Grohne
+
+diff --git a/configure.ac b/configure.ac
+index 90b0be6c89df4b3b..1df85ad6c222ce8d 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -162,7 +162,7 @@ AC_MSG_CHECKING(for CLOCK_MONOTONIC)
+ AC_TRY_RUN([
+   #include <time.h>
+   #include <errno.h>
+-main()
++int main(void)
+   {
+   struct timespec tp;
+   if(clock_gettime(CLOCK_MONOTONIC, &tp))

gavl.spec

@@ -1,12 +1,14 @@
 Name:           gavl
 Version:        1.4.0
-Release:        22%{?dist}
+Release:        23%{?dist}
 Summary:        A library for handling uncompressed audio and video data
 
 License:        GPLv3+
 URL:            http://gmerlin.sourceforge.net/
 Source0:        http://downloads.sourceforge.net/gmerlin/gavl-%{version}.tar.gz
 Patch1:         gavl-1.1.1-system_libgdither.patch
+Patch2: gavl-configure-c99.patch
+Patch3: gavl-c99.patch
 
 BuildRequires:  libtool
 
@@ -44,6 +46,8 @@ developing applications that use %{name}.
 %prep
 %setup -q
 %patch1 -p1 -b .gdither
+%patch2 -p1
+%patch3 -p1
 
 #Disable buildtime cpu detection
 sed -i -i 's/LQT_TRY_CFLAGS/dnl LQT_TRY_CFLAGS/g' configure.ac
@@ -90,6 +94,9 @@ touch -r include/gavl/gavl.h $RPM_BUILD_ROOT%{_includedir}/gavl/gavl_version.h
 
 
 %changelog
+* Fri Apr 14 2023 Florian Weimer <fweimer@redhat.com> - 1.4.0-23
+- Port to C99
+
 * Thu Jan 19 2023 Fedora Release Engineering <releng@fedoraproject.org> - 1.4.0-22
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild